public async Task Initialize()
{
Characters.Clear();
_account = await _helper.GetAccountAsync();
if (_account != null)
{
var characters = await _repository.ReadAsync();
foreach (var character in characters.Select(c => new CharacterViewModel(c)))
{
Characters.Add(character);
}
}
}
public LogInPageViewModel(IAuthenticationHelper _helper, INavigationService _service, IUserAPI _userAPI)
{
helper = _helper;
service = _service;
userAPI = _userAPI;
//gets called when app starts
InitCommand = new RelayCommand(async o =>
{
account = await helper.GetAccountAsync();
if (account != null)
{
//check api if user exists
var user = await userAPI.GetMyself();
//navigate to main page
if (user != null)
{
CommonAttributes.account = account;
service.Navigate(typeof(MainPage), null);
}
else
{
service.Navigate(typeof(RegisterPage), account);
}
}
});
//gets called when log in button is pressed
LogInCommand = new RelayCommand(async o =>
{
account = await helper.GetAccountAsync();
//navigate to main page
if (account == null)
{
//pop up sign in page
account = await helper.SignInAsync();
//if sign in is successfull
if (account != null)
{
CommonAttributes.account = account;
//check api if user exists
var user = await userAPI.GetMyself();
if (user == null)
{
service.Navigate(typeof(RegisterPage), account);
}
else
{
service.Navigate(typeof(MainPage), null);
}
}
}
else
{
CommonAttributes.account = account;
//check api if user exists
var user = await userAPI.GetMyself();
if (user == null)
{
service.Navigate(typeof(RegisterPage), account);
}
else
{
service.Navigate(typeof(MainPage), null);
}
}
});
}